Improvement in window-shades



A. W. LANE.- Window-Shade.

Patented April 29, I879.

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UNITED STATES PATENT ()FFICE.

ATLEE W. LANE, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT lN WINDOW-SHADES.

Specification forming part of Letters Patent No. 214,926, dated April29, 1879; application filed February 21, 1879.

To all whom it may concern Be it known that I, ATLEE W. LANE, ofPhiladelphia, Pennsylvania, have invented a new and useful Improvementin Window- Shades, of which the following is a specification.

My invention relates to an improvement in the window-shade for whichLetters Patent No. 203,468 were granted to me on the 7th day of May, A.D. 1878; the object of my improvement being to provide for the properbalancing of the shade and its spring-rollermeclianism Without exposingthe balancing-weights. This object I attain in the manner which I willnow proceed to describe, reference being had to the accompanyingdrawings, in which- Figure 1 is asectional perspective view of the lowerportion of the shade, showing the manner of applying thebalancing-weight to the same; Fig. 2, a transverse vertical section ofFig. 1; and Fig. 3, atransverse section, showin g a modification.

- In Fi gs. land 2,Arepresents part of the shade,

and B B portions of the two wooden strips between which the loweredge ofthe shade is clamped, the strips being connected together at theiropposite ends by detachable caps D, and one strip B havinga dovetailedrib adapted to a groove of corresponding shape in the other strip, as inmy said patent.

In the inner face of one of the strips B is formed a groove, to which isadapted a block, a, preferably of triangular shape, and of lead or othersuitable material, the length of this block being determined by theweight required to properly balance the shade and its springrollermechanism. Two or more of these metal blocks may be used, ascircumstances may suggest.

Fig. 3 shows a modification of my invention, in which the dovetailed riband groove are dispensed with, both strips in this case havingtriangular grooves, and the metal block a being square.

I am aware that shade-strips have been heretofore provided withbalancing-weights; but in such strips, which are intended for insertioninto folds on the shades, the weights are always exposed, andconsequently the plans heretofore adopted cannot be used in connectionwith my improved shade, in which the strip is not covered.

By grooving one or both of the strips internally, however, and adaptingthe weight or weights to the internal groove or grooves, said weight isentirely concealed.

I claim as my invention- The combination of the two strips B with thebalancing-Weight a, which, together with the end of the shade, issecured 'between the two strips, all substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

A. W. LANE. Witnesses:

WM. J. COOPER, HARRY SMITH.

